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posted by  stuff06 on 10/7/2008 2:28:50 AM  |  status: Live  

probability theory

Course Textbook Chapter Problem
Calculus Based Physics N/A N/A N/A
Question Details:
two people take turns tossing a coin. The first person to obtain heads is the winner. Find the probabilities of the following events.
 
-the game ends at the fourth toss
-the first player wins the game.
-the second player wins the game.
  
This is my final exam question due thursday, philippine time.
Please consider answering it.
Thank you vey much.

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Pupil
Karma Points: 71
posted by harishbatana on 10/7/2008 7:05:23 AM  |  status: Live
Asker's Rating: Helpful   
stuff06's comment:
"thank you so much...^^"
Response Details:
-the game ends at the fourth toss
   I will try to explain it as simple as possible.
   Game ends in 4rth toss, implies that first three are failures. so there are 4 events, Three Tails and One head, and all are
   independent events.........So Probabiltiy is 0.5*0.5*0.5*0.5 = 0.0625
-the first player wins the game.
   Applying the same logic.
   0.5 is the answer
-the second player wins the game.
   Again same Logic
   Answer is 0.25
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